Add -k option to urxvtc for killing the daemon process.

1 files changed, 155 insertions, 0 deletions

diff --git a/src/rxvtc.C b/src/rxvtc.C
new file mode 100644
index 0000000..71fa330
--- /dev/null
+++ b/src/rxvtc.C
@@ -0,0 +1,155 @@
+/*----------------------------------------------------------------------*
+ * File:	rxvtc.C
+ *----------------------------------------------------------------------*
+ *
+ * All portions of code are copyright by their respective author/s.
+ * Copyright (c) 2003-2006 Marc Lehmann <schmorp@schmorp.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *----------------------------------------------------------------------*/
+
+#include "../config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include "rxvtdaemon.h"
+#include "libptytty.h"
+
+#define STATUS_SUCCESS           0
+#define STATUS_FAILURE           1
+#define STATUS_CONNECTION_FAILED 2
+
+struct client : rxvt_connection
+{
+  client ();
+};
+
+client::client ()
+{
+  sockaddr_un sa;
+  char *sockname = rxvt_connection::unix_sockname ();
+
+  if (strlen (sockname) >= sizeof (sa.sun_path))
+    {
+      fputs ("socket name too long, aborting.\n", stderr);
+      exit (STATUS_FAILURE);
+    }
+
+  if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0)
+    {
+      perror ("unable to create communications socket");
+      exit (STATUS_FAILURE);
+    }
+
+  sa.sun_family = AF_UNIX;
+  strcpy (sa.sun_path, sockname);
+  free (sockname);
+
+  if (connect (fd, (sockaddr *)&sa, sizeof (sa)))
+    {
+      perror ("unable to connect to the rxvt-unicode daemon");
+      exit (STATUS_CONNECTION_FAILED);
+    }
+}
+
+extern char **environ;
+
+int
+main (int argc, const char *const *argv)
+{
+  // instead of getcwd we could opendir (".") and pass the fd for fchdir *g*
+  char cwd[PATH_MAX];
+
+  if (!getcwd (cwd, sizeof (cwd)))
+    {
+      perror ("unable to determine current working directory");
+      exit (STATUS_FAILURE);
+    }
+
+  client c;
+
+  {
+    sigset_t ss;
+
+    sigemptyset (&ss);
+    sigaddset (&ss, SIGHUP);
+    sigaddset (&ss, SIGPIPE);
+    sigprocmask (SIG_BLOCK, &ss, 0);
+  }
+
+  if (argc >= 2 && !strcmp (argv[1], "-k"))
+    {
+      c.send ("QUIT");
+      return 0;
+    }
+
+  c.send ("NEW");
+
+  for (char **var = environ; *var; var++)
+    c.send ("ENV"), c.send (*var);
+
+  const char *base = strrchr (argv[0], '/');
+  base = base ? base + 1 : argv[0];
+  c.send ("ARG"), c.send (strcmp (base, RXVTNAME "c") ? base : RXVTNAME);
+
+  c.send ("ARG"), c.send ("-cd");
+  c.send ("ARG"), c.send (cwd);
+
+  for (int i = 1; i < argc; i++)
+    c.send ("ARG"), c.send (argv[i]);
+
+  c.send ("END");
+
+  auto_str tok;
+  int cint;
+
+  for (;;)
+    if (!c.recv (tok))
+      {
+        fprintf (stderr, "protocol error: unexpected eof from server.\n");
+        break;
+      }
+    else if (!strcmp (tok, "MSG") && c.recv (tok))
+      fprintf (stderr, "%s", (const char *)tok);
+    else if (!strcmp (tok, "GETFD") && c.recv (cint))
+      {
+        if (!ptytty::send_fd (c.fd, cint))
+          {
+            fprintf (stderr, "unable to send fd %d: ", cint); perror (0);
+            exit (STATUS_FAILURE);
+          }
+      }
+    else if (!strcmp (tok, "END"))
+      {
+        int success;
+
+        if (c.recv (success))
+          exit (success ? STATUS_SUCCESS : STATUS_FAILURE);
+      }
+    else
+      {
+        fprintf (stderr, "protocol error: received unsupported token '%s'.\n", (const char *)tok);
+        break;
+      }
+
+  return STATUS_FAILURE;
+}
+